Mike Gordon continues to fill out his summer dance card. Gordon and his new group are among the artists added to the 12th annual All Good Music Festival. Dark Star Orchestra, The Avett Brothers, Perpetual Groove, Scrapomatic and SOJA also will join the festival which return to Masontown, WVs Marvin’s Mountaintop from July 11-13. The stacked line-up also includes Widespread Panic, Phil Lesh & Friends and Gov’t Mule. The gathering will also boast performances by Michael Franti & Spearhead, Keller Williams and the WMD’S, Derek Trucks and Susan Tedeschi Soul Stew Revival, Medeski, Martin & Wood, Railroad Earth, Tea Leaf Green, The Bridge, Hot Buttered Rum, RAQ, Bonerama, Pnuma Trio, The Wood Brothers, Bassnectar and Outformation.